Perform the following procedure in Windows Server Update Services (WSUS) 3.0 SP2 to verify that the destination server is configured and functioning correctly before pointing the WSUS clients and any downstream servers to the new WSUS server.

To start the WSUS Administration Console, click Start point to All Programs, point to Administrative Tools, and then click Windows Server Update Services.

In the WSUS Administration Console, expand Computers and verify that all computer groups that existed on the source server are displayed.

Expand Synchronizations. In the Actions pane click Synchronize now. After the synchronization is completed (this may take several minutes), confirm that Succeeded is displayed in the Results column.

If the synchronization fails, click Options. Confirm that the Update Source and Proxy Server settings and password are correct. Confirm that the firewall access is configured correctly for the new server’s environment. Make the necessary changes, and then run the synchronization again.

Confirm that the synchronization was successful before you start the Post-Migration tasks.